626226428 has 24 divisors (see below), whose sum is σ = 1156407840. Its totient is φ = 296130560.

The previous prime is 626226409. The next prime is 626226463. The reversal of 626226428 is 824622626.

It is a junction number, because it is equal to n+sod(n) for n = 626226391 and 626226400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30053 + ... + 46428.

It is an arithmetic number, because the mean of its divisors is an integer number (48183660).

Almost surely, 2^626226428 is an apocalyptic number.

It is an amenable number.

626226428 is a deficient number, since it is larger than the sum of its proper divisors (530181412).

626226428 is a wasteful number, since it uses less digits than its factorization.

626226428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76597 (or 76595 counting only the distinct ones).

The product of its digits is 110592, while the sum is 38.

The square root of 626226428 is about 25024.5165387865. The cubic root of 626226428 is about 855.5468512398.

The spelling of 626226428 in words is "six hundred twenty-six million, two hundred twenty-six thousand, four hundred twenty-eight".